Current Conditions

Thornhill, Ontario

63°F17°C

Partly Cloudy

Wind

NW 6 mph9 km/h

Humidity

86%

Cloud Cover

28%

As of Tuesday, August 18, 2026 at 8:01 AM EDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h.

Night

Mostly cloudy, with a low around 60°F16°C. Breezy from the W at 8 to 9 mph12 to 14 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 79°F26°C	Low 60°F16°C	Precip 0 in0 mm—	Cloud 53%	Wind W 7 mph11 km/h	Tuesday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. Tuesday Night: Mostly cloudy, with a low around 60°F16°C. Breezy from the W at 8 to 9 mph12 to 14 km/h.
Showers	High 77°F25°C	Low 64°F18°C	Precip 0.19 in4.7 mm87%	Cloud 52%	Wind WNW 6 mph10 km/h	Wednesday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Light wind from the WNW around 6 mph10 km/h. 81% chance of showers throughout the day. Wednesday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the WNW at 7 mph10 km/h. 87% chance of showers throughout the night.
Clear	High 77°F25°C	Low 58°F14°C	Precip 0 in0.1 mm2%	Cloud 24%	Wind NNW 6 mph10 km/h	Thursday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the NW at 6 to 7 mph9 to 11 km/h. Thursday Night: Mostly clear, with a low around 58°F14°C. Breezy from the NNW at 6 to 7 mph10 to 12 km/h.
Clear	High 75°F24°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 30%	Wind ESE 6 mph9 km/h	Friday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h. Friday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the ENE around 6 mph9 km/h.
Showers	High 75°F24°C	Low 63°F17°C	Precip 0.25 in6.4 mm76%	Cloud 66%	Wind S 7 mph11 km/h	Saturday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the S at 8 to 9 mph12 to 15 km/h. 76% chance of showers throughout the day. Saturday Night: Mostly cloudy, with a low around 63°F17°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 70% chance of showers in the evening.
Showers	High 71°F21°C	Low 61°F16°C	Precip 0.12 in3.1 mm50%	Cloud 48%	Wind WNW 9 mph15 km/h	Sunday: Mostly cloudy and warm, with a high of 71°F21°C and morning low of 62°F17°C. Breezy from the WNW at 10 to 12 mph16 to 19 km/h. 50% chance of showers throughout the day. Sunday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the WNW at 9 mph14 km/h. 23% chance of drizzle throughout the night.
Drizzle	High 70°F21°C	Low 57°F14°C	Precip 0.03 in0.8 mm19%	Cloud 46%	Wind WNW 9 mph14 km/h	Monday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F15°C. Breezy from the WNW at 10 mph16 km/h. 19% chance of drizzle throughout the day. Monday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h. 11% chance of drizzle.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdayAug 18	79°F26°C	60°F16°C	0 in0 mm· —	53%	Partly Cloudy	W 7 mph11 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. NightMostly cloudy, with a low around 60°F16°C. Breezy from the W at 8 to 9 mph12 to 14 km/h.
	WednesdayAug 19	77°F25°C	64°F18°C	0.19 in4.7 mm· 87%	52%	Showers	WNW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Light wind from the WNW around 6 mph10 km/h. 81% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the WNW at 7 mph10 km/h. 87% chance of showers throughout the night.
	ThursdayAug 20	77°F25°C	58°F14°C	0 in0.1 mm· 2%	24%	Clear	NNW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the NW at 6 to 7 mph9 to 11 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the NNW at 6 to 7 mph10 to 12 km/h.
	FridayAug 21	75°F24°C	55°F13°C	0 in0 mm· —	30%	Clear	ESE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 55°F13°C. Light wind from the ENE around 6 mph9 km/h.
	SaturdayAug 22	75°F24°C	63°F17°C	0.25 in6.4 mm· 76%	66%	Showers	S 7 mph11 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the S at 8 to 9 mph12 to 15 km/h. 76% chance of showers throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 70% chance of showers in the evening.
	SundayAug 23	71°F21°C	61°F16°C	0.12 in3.1 mm· 50%	48%	Showers	WNW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 71°F21°C and morning low of 62°F17°C. Breezy from the WNW at 10 to 12 mph16 to 19 km/h. 50% chance of showers throughout the day. NightPartly cloudy, with a low around 61°F16°C. Breezy from the WNW at 9 mph14 km/h. 23% chance of drizzle throughout the night.
	MondayAug 24	70°F21°C	57°F14°C	0.03 in0.8 mm· 19%	46%	Drizzle	WNW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F15°C. Breezy from the WNW at 10 mph16 km/h. 19% chance of drizzle throughout the day. NightPartly cloudy, with a low around 57°F14°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h. 11% chance of drizzle.
	TuesdayAug 25	74°F23°C	56°F13°C	0.02 in0.4 mm· 10%	47%	Drizzle	WNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 59°F15°C. Breezy from the W at 7 mph11 km/h. 10% chance of drizzle. NightPartly cloudy, with a low around 56°F13°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h.
	WednesdayAug 26	74°F23°C	59°F15°C	0.07 in1.9 mm· 20%	50%	Drizzle	SSW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 61°F16°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 20% chance of drizzle throughout the day. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NW around 6 mph9 km/h. 18% chance of drizzle throughout the night.
	ThursdayAug 27	75°F24°C	61°F16°C	0.07 in1.7 mm· 22%	46%	Drizzle	NNE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 22% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Light wind from the N around 6 mph9 km/h. 14% chance of drizzle throughout the night.
	FridayAug 28	75°F24°C	61°F16°C	0.04 in0.9 mm· 16%	45%	Drizzle	NNE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 62°F17°C. Breezy from the ENE at 7 mph11 km/h. 16% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 61°F16°C. Light wind from the N around 6 mph10 km/h. 11% chance of drizzle in the evening.
	SaturdayAug 29	76°F24°C	61°F16°C	0.05 in1.3 mm· 12%	42%	Drizzle	SW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 63°F17°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Light wind from the NNW around 6 mph9 km/h. 10% chance of drizzle throughout the night.
	SundayAug 30	76°F25°C	62°F16°C	0.05 in1.3 mm· 11%	46%	Drizzle	W 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 63°F17°C. Breezy from the WSW at 7 mph11 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F16°C. Light wind from the WNW around 6 mph10 km/h.
	MondayAug 31	76°F24°C	62°F16°C	0.06 in1.4 mm· 16%	48%	Drizzle	W 7 mph11 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 63°F17°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F16°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. 11% chance of drizzle throughout the night.
	TuesdaySep 1	74°F23°C	61°F16°C	0.08 in2 mm· 17%	52%	Drizzle	N 7 mph12 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Breezy from the N at 7 to 8 mph12 to 13 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Breezy from the N at 7 mph11 km/h. 13% chance of drizzle throughout the night.

Nearby Cities

Newtonbrook East2 mi3 km Newtonbrook West2 mi3 km Westminster-Branson3 mi5 km Willowdale West3 mi5 km Willowdale East3 mi5 km Bayview Village3 mi6 km

About This Forecast

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Coordinates: 43.8150°N, 79.4242°W·Elevation: 175m·Timezone: America/Toronto·Population: 115,292